This is a new event in the Genshin Impact game. You need to complete the third, fourth, and fifth acts of the Demon God quest and the first act of the Yula Legend quest to participate.
In the second stage, follow the guidance of the task to the position of sales efficiency.
It is recommended to upgrade the shelves in efficiency first, which can increase the types of medicines on the shelves, and then upgrade to the first level of serial sales.
Upgrading the wish can increase the probability of obtaining additional levels of the potion, and inspection can increase the alchemy experience.
The next step is to put it on the shelves and end the cycle. Note that when you buy an alchemy cauldron at Alchemy Level 9 or Alchemy Level 12, the assessment is relatively simple.
I hope this guide will be helpful to everyone, and I wish you all a happy game in the world of Genshin Impact!